Improvement in hinges foe window-shutters



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PASCAL P. CHILD, or str.A LOUIS,- MIssoURI, .issIeNon To s. n... FOX MANUruiorU-RINo.v COMPANY, or SAME PLACE.

Letters Patent N. 72,603, dated December 24, 1867.

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Be it known that I, PASCAL P. CHILD, of St. Louis, in the county of St. Louis, and State of Missouri, have made certain new and useful Improvements in Bndel-linges; and'I-do hereby declare that the following is n. full and clear description thereof, reference being had to lthe accompanying drawings, and to the letters of reference marked thereon;

This invention relates to an improvement upoii the Lull St Portcrhinge, patented January 31, 1854. Thel central spindle, cam-arms, andinclined planes used in the hinge above referred to, are also used in this hinge.-

The chief features of the improvement consist of an eccentric ange surrounding the central pivot or spindle, and a projecting lip on the other part of the hinge that overlaps the Asaid eccentric flange when the/'two parts 'are together, and prevents the Ablind or shutter from being thrown from its hinges, except at one small point,

thus obviating the diiculty 'of having'the blinds blown olf when opened.

To enable those skilled in the art to make and use my improved hinges, I will proceed to describe their construction and operation.

' Figure 1 of the drawings is a perspective view of a. paiaof the hinges removed from the shutter, but coupled together as they would appear when in use.

Figure 2 is an elevation of the two parts of the hinge detached from each other. Figure 3 is a plan of the two parts of the hinge detached, as in iig. 2.

This hinge, like that of "Lull't Porter, Yabove referred to, is a self-locking'hinge, cast in two pieces, A and B, which ariegpivoted together by means of a central spindle, C. This hinge is also like the Tull @t Porter hinge, in that it has cam-arms, a and I1, vwhich are provided with inclined planes, which allow the shutter-hinge to rise np onthe stationaryhinge inswinging to, until a certain point is attained, when sectionalcollars receive the weight and sustain it until the shutter is closed.l When swung open, the cam-arms drop behind each other, just before the blind is open, and hold it there in a fixed position against the wall of the building.

From the foregoing description of the Lull d'. Porter hinge, it is evident that when the blind or shutter was Y at any point outside of the rebating ofthe window-frame, it might easily be lifted olf its hinges, even by a gust of wind, and it was peculiarly liable to such a. mishap when a person attempted to pull the shutter to or close it, as, to do so, it would be necessary to slightly Araise the shutter in order to allow the cams to rise over their corresponding inclined planes. v It is to overcome this diculty that the present invention is devised, and it is accomplished in the following manner, to wit: The upper part of the leaf of the hingeA. is, in this instance, provided with a lip or wing, A,

that extends over toward the spindle C, just as far as itis possible to do and leave room for the socket of the hinge B to slip on to the said spindle when the two wings of the hinge are'placed perpendicular to each other. t

The upper part of the carn is also widened out into an eccentric ange,'b, whichis shown bestin fig. ,3. This flange can onlyv pass below the point of the lip or wing A at which point is directly in the central front part of the said flange, which, `from that point, is widened out by the additionof that metal which is added outside of the dotted line in fig. 3, the distance between the said dotted line and the periphery of the Harige being about one-sixteenth to on'e-eighthvof an inch behind the hinge. I

From this description it is evident the hinges must be turned so that the point of A will pass below the ange b at ze, when the hingespre to be coupled, and that at no other point can the hinge B andits shutter be blown or lifted oif from the spindleC, when the hinges are in use. l

The hingenB might, of course, be constructed with a projecting lip in the place of the lip A', which, in that case', would lock under the cam' a. This construction would evidently bea full equivalent for the other device.

Having described' my invention, `what I claim, is I v The lip A upon either half of the hinge A B, projecting over or under the lange b', as the case 4may be, in such manner as to'come inlcontact with and act as la stop for the flange b when the blind is inadvertently raised,

as shown and described.

PASCAL P.I CHILD.

Witnesses:

M. RANDOLPH, Guo. P. HERTBEL, Jr'. 

